./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound50.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98369d9212fd3855c7312ce1f4a6a94601b6c04438d46f463a4c8e55ff4dc367 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 19:16:42,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:16:42,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 19:16:42,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:16:42,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:16:42,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:16:42,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:16:42,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:16:42,153 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:16:42,154 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:16:42,154 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:16:42,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:16:42,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:16:42,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:16:42,155 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:16:42,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:16:42,156 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:16:42,157 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:16:42,157 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 19:16:42,157 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:16:42,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:16:42,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:16:42,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:16:42,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:16:42,162 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:16:42,162 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:16:42,162 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:16:42,163 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:16:42,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:16:42,163 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:16:42,163 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:16:42,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:16:42,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:16:42,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:16:42,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:16:42,165 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:16:42,165 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:16:42,166 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:16:42,166 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 19:16:42,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 19:16:42,167 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:16:42,167 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:16:42,167 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:16:42,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:16:42,168 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98369d9212fd3855c7312ce1f4a6a94601b6c04438d46f463a4c8e55ff4dc367 [2024-11-10 19:16:42,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:16:42,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:16:42,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:16:42,454 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:16:42,454 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:16:42,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound50.c [2024-11-10 19:16:43,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:16:44,063 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:16:44,063 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound50.c [2024-11-10 19:16:44,070 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f2dbe5bf/9422a74edbe84018b0dccd347b09448f/FLAGe5439f5c2 [2024-11-10 19:16:44,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f2dbe5bf/9422a74edbe84018b0dccd347b09448f [2024-11-10 19:16:44,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:16:44,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:16:44,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:16:44,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:16:44,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:16:44,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227c75a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44, skipping insertion in model container [2024-11-10 19:16:44,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:16:44,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:16:44,673 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:16:44,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:16:44,722 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:16:44,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44 WrapperNode [2024-11-10 19:16:44,723 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:16:44,724 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:16:44,724 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:16:44,724 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:16:44,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,751 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2024-11-10 19:16:44,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:16:44,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:16:44,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:16:44,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:16:44,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,767 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,776 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 19:16:44,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,779 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:16:44,782 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:16:44,782 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:16:44,782 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:16:44,783 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (1/1) ... [2024-11-10 19:16:44,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:16:44,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:16:44,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 19:16:44,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 19:16:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:16:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 19:16:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:16:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:16:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:16:44,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:16:44,936 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:16:44,938 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:16:45,064 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-10 19:16:45,066 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:16:45,076 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:16:45,076 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:16:45,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:16:45 BoogieIcfgContainer [2024-11-10 19:16:45,077 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:16:45,079 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:16:45,079 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:16:45,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:16:45,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:16:44" (1/3) ... [2024-11-10 19:16:45,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cfb8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:16:45, skipping insertion in model container [2024-11-10 19:16:45,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:16:44" (2/3) ... [2024-11-10 19:16:45,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cfb8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:16:45, skipping insertion in model container [2024-11-10 19:16:45,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:16:45" (3/3) ... [2024-11-10 19:16:45,084 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound50.c [2024-11-10 19:16:45,096 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:16:45,096 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 19:16:45,145 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:16:45,152 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49c858f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:16:45,152 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 19:16:45,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:16:45,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-10 19:16:45,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:16:45,171 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-10 19:16:45,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-10 19:16:45,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:16:45,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1538143, now seen corresponding path program 1 times [2024-11-10 19:16:45,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:16:45,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699832056] [2024-11-10 19:16:45,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:16:45,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:16:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:45,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:16:45,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:16:45,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699832056] [2024-11-10 19:16:45,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699832056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:16:45,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:16:45,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:16:45,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442303415] [2024-11-10 19:16:45,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:16:45,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:16:45,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:16:45,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:16:45,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:16:45,482 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:16:45,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:16:45,561 INFO L93 Difference]: Finished difference Result 48 states and 62 transitions. [2024-11-10 19:16:45,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:16:45,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-10 19:16:45,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:16:45,571 INFO L225 Difference]: With dead ends: 48 [2024-11-10 19:16:45,571 INFO L226 Difference]: Without dead ends: 20 [2024-11-10 19:16:45,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:16:45,578 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:16:45,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 52 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:16:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-10 19:16:45,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2024-11-10 19:16:45,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 19:16:45,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2024-11-10 19:16:45,607 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 4 [2024-11-10 19:16:45,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:16:45,607 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2024-11-10 19:16:45,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:16:45,607 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2024-11-10 19:16:45,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-10 19:16:45,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:16:45,609 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:16:45,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 19:16:45,609 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-10 19:16:45,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:16:45,610 INFO L85 PathProgramCache]: Analyzing trace with hash 239110068, now seen corresponding path program 1 times [2024-11-10 19:16:45,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:16:45,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284550393] [2024-11-10 19:16:45,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:16:45,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:16:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:45,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:16:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:45,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:16:45,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:16:45,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284550393] [2024-11-10 19:16:45,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284550393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:16:45,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693061861] [2024-11-10 19:16:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:16:45,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:16:45,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:16:45,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:16:45,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 19:16:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:45,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 19:16:45,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:16:46,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:16:46,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:16:46,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693061861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:16:46,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:16:46,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-10 19:16:46,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623731388] [2024-11-10 19:16:46,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:16:46,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 19:16:46,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:16:46,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 19:16:46,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:16:46,055 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 19:16:46,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:16:46,112 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2024-11-10 19:16:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:16:46,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-10 19:16:46,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:16:46,114 INFO L225 Difference]: With dead ends: 20 [2024-11-10 19:16:46,114 INFO L226 Difference]: Without dead ends: 19 [2024-11-10 19:16:46,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:16:46,116 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:16:46,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 16 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:16:46,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-10 19:16:46,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2024-11-10 19:16:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 19:16:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-11-10 19:16:46,124 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2024-11-10 19:16:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:16:46,124 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-11-10 19:16:46,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 19:16:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-11-10 19:16:46,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-10 19:16:46,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:16:46,126 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:16:46,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 19:16:46,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:16:46,328 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-10 19:16:46,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:16:46,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1177522501, now seen corresponding path program 1 times [2024-11-10 19:16:46,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:16:46,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678051931] [2024-11-10 19:16:46,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:16:46,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:16:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:46,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:16:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:46,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:16:46,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:16:46,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678051931] [2024-11-10 19:16:46,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678051931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:16:46,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241482268] [2024-11-10 19:16:46,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:16:46,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:16:46,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:16:46,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:16:46,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 19:16:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:46,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 19:16:46,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:16:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:16:46,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:16:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:16:46,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241482268] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:16:46,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:16:46,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 5] total 12 [2024-11-10 19:16:46,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060601624] [2024-11-10 19:16:46,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:16:46,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 19:16:46,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:16:46,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 19:16:46,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-10 19:16:46,738 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:16:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:16:46,898 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2024-11-10 19:16:46,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 19:16:46,899 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2024-11-10 19:16:46,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:16:46,900 INFO L225 Difference]: With dead ends: 52 [2024-11-10 19:16:46,900 INFO L226 Difference]: Without dead ends: 51 [2024-11-10 19:16:46,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-11-10 19:16:46,901 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 50 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:16:46,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 51 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:16:46,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-10 19:16:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2024-11-10 19:16:46,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.024390243902439) internal successors, (42), 41 states have internal predecessors, (42), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-10 19:16:46,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2024-11-10 19:16:46,913 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 16 [2024-11-10 19:16:46,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:16:46,913 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2024-11-10 19:16:46,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:16:46,914 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2024-11-10 19:16:46,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-10 19:16:46,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:16:46,916 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-10 19:16:46,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 19:16:47,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-10 19:16:47,117 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-10 19:16:47,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:16:47,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1508662864, now seen corresponding path program 2 times [2024-11-10 19:16:47,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:16:47,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823155680] [2024-11-10 19:16:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:16:47,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:16:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:47,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:16:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:47,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 19:16:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:47,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 19:16:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:47,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 19:16:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:47,441 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 19:16:47,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:16:47,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823155680] [2024-11-10 19:16:47,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823155680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:16:47,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017618271] [2024-11-10 19:16:47,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 19:16:47,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:16:47,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:16:47,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:16:47,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 19:16:47,517 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 19:16:47,518 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:16:47,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 19:16:47,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:16:47,666 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 19:16:47,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:16:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 19:16:47,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017618271] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:16:47,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:16:47,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 24 [2024-11-10 19:16:47,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102618571] [2024-11-10 19:16:47,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:16:47,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-10 19:16:47,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:16:47,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-10 19:16:47,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2024-11-10 19:16:47,900 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 25 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 25 states have internal predecessors, (80), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-10 19:16:48,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:16:48,322 INFO L93 Difference]: Finished difference Result 118 states and 123 transitions. [2024-11-10 19:16:48,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-10 19:16:48,322 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 25 states have internal predecessors, (80), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 49 [2024-11-10 19:16:48,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:16:48,324 INFO L225 Difference]: With dead ends: 118 [2024-11-10 19:16:48,324 INFO L226 Difference]: Without dead ends: 117 [2024-11-10 19:16:48,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=576, Invalid=1230, Unknown=0, NotChecked=0, Total=1806 [2024-11-10 19:16:48,327 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 118 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:16:48,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 70 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:16:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-10 19:16:48,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2024-11-10 19:16:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 19:16:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2024-11-10 19:16:48,343 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 49 [2024-11-10 19:16:48,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:16:48,344 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2024-11-10 19:16:48,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 25 states have internal predecessors, (80), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-10 19:16:48,344 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2024-11-10 19:16:48,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-10 19:16:48,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:16:48,348 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2024-11-10 19:16:48,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 19:16:48,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:16:48,549 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-10 19:16:48,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:16:48,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1413512432, now seen corresponding path program 3 times [2024-11-10 19:16:48,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:16:48,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203426682] [2024-11-10 19:16:48,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:16:48,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:16:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 19:16:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 19:16:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 19:16:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 19:16:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 19:16:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 19:16:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 19:16:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 19:16:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 19:16:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 19:16:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:16:49,351 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-10 19:16:49,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:16:49,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203426682] [2024-11-10 19:16:49,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203426682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:16:49,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774438430] [2024-11-10 19:16:49,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 19:16:49,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:16:49,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:16:49,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 19:16:49,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 19:16:49,420 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 19:16:49,421 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 19:16:49,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 19:16:49,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:16:49,505 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-10 19:16:49,506 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:16:49,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774438430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:16:49,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:16:49,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [24] total 27 [2024-11-10 19:16:49,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617082434] [2024-11-10 19:16:49,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:16:49,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:16:49,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:16:49,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:16:49,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-11-10 19:16:49,509 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:16:49,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:16:49,564 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2024-11-10 19:16:49,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:16:49,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 115 [2024-11-10 19:16:49,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:16:49,565 INFO L225 Difference]: With dead ends: 116 [2024-11-10 19:16:49,565 INFO L226 Difference]: Without dead ends: 0 [2024-11-10 19:16:49,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=221, Invalid=649, Unknown=0, NotChecked=0, Total=870 [2024-11-10 19:16:49,567 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:16:49,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 19 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:16:49,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-10 19:16:49,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-10 19:16:49,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 19:16:49,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-10 19:16:49,569 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 115 [2024-11-10 19:16:49,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:16:49,569 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 19:16:49,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-10 19:16:49,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-10 19:16:49,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-10 19:16:49,572 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-10 19:16:49,572 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-10 19:16:49,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 19:16:49,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:16:49,776 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-11-10 19:16:49,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-10 19:16:49,869 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 19:16:49,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:16:49 BoogieIcfgContainer [2024-11-10 19:16:49,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 19:16:49,886 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 19:16:49,886 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 19:16:49,886 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 19:16:49,886 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:16:45" (3/4) ... [2024-11-10 19:16:49,889 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 19:16:49,892 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-10 19:16:49,897 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-10 19:16:49,897 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 19:16:49,897 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 19:16:49,897 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 19:16:49,978 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 19:16:49,978 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 19:16:49,978 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 19:16:49,978 INFO L158 Benchmark]: Toolchain (without parser) took 5521.55ms. Allocated memory was 134.2MB in the beginning and 222.3MB in the end (delta: 88.1MB). Free memory was 63.5MB in the beginning and 78.3MB in the end (delta: -14.8MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. [2024-11-10 19:16:49,979 INFO L158 Benchmark]: CDTParser took 1.06ms. Allocated memory is still 134.2MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 19:16:49,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.98ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 63.5MB in the beginning and 155.2MB in the end (delta: -91.7MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-11-10 19:16:49,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.26ms. Allocated memory is still 184.5MB. Free memory was 155.1MB in the beginning and 153.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 19:16:49,979 INFO L158 Benchmark]: Boogie Preprocessor took 29.73ms. Allocated memory is still 184.5MB. Free memory was 153.6MB in the beginning and 153.5MB in the end (delta: 101.0kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 19:16:49,979 INFO L158 Benchmark]: IcfgBuilder took 294.80ms. Allocated memory is still 184.5MB. Free memory was 153.5MB in the beginning and 142.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 19:16:49,980 INFO L158 Benchmark]: TraceAbstraction took 4806.28ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 140.9MB in the beginning and 82.4MB in the end (delta: 58.5MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. [2024-11-10 19:16:49,980 INFO L158 Benchmark]: Witness Printer took 92.39ms. Allocated memory is still 222.3MB. Free memory was 82.4MB in the beginning and 78.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 19:16:49,984 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06ms. Allocated memory is still 134.2MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.98ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 63.5MB in the beginning and 155.2MB in the end (delta: -91.7MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.26ms. Allocated memory is still 184.5MB. Free memory was 155.1MB in the beginning and 153.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.73ms. Allocated memory is still 184.5MB. Free memory was 153.6MB in the beginning and 153.5MB in the end (delta: 101.0kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * IcfgBuilder took 294.80ms. Allocated memory is still 184.5MB. Free memory was 153.5MB in the beginning and 142.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4806.28ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 140.9MB in the beginning and 82.4MB in the end (delta: 58.5MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. * Witness Printer took 92.39ms. Allocated memory is still 222.3MB. Free memory was 82.4MB in the beginning and 78.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 194 mSDsluCounter, 208 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 53 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 362 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=4, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 394 NumberOfCodeBlocks, 295 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 448 ConstructedInterpolants, 0 QuantifiedInterpolants, 986 SizeOfPredicates, 16 NumberOfNonLiveVariables, 292 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 755/1297 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 33]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 15]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-11-10 19:16:50,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE